Help:Lua

"Hello world"

• Module:Bananas: The simplest possible script: say "hello world". Providing a single function with no arguments.
• Module:BananasArgs: Demonstrates how to access and use parameters.

Documentation

• Scribunto Lua reference manual (Manual for the Mediawiki implementation)
• Programming in Lua (Lua.org manual for version 5.2)

How-to guides

• Wikipedia:Lua style guide – standards to improve the readability of code through consistency
• "What do converted templates look like?" (slideshow)
• Help:Lua debugging – a how-to guide about debugging Lua modules
• Help:Lua for beginners
• Wikipedia:Lua string functions

Testing modules

• Module:UnitTests - used to power many module unit tests, which are usually found by the name "Module:(your-module-Sample unit tests for the "Hello world" modules:
• Module:Bananas/testcases – Results
• Module:BananasArgs/testcases – Resultsname)

Wikipedia resources

• Special:PrefixIndex/Module:Sandbox - allows you to work on a set of files within a sandbox prefix.
• Lua (mainspace article)